CVE-2025-0501

7.5 HIGH

📋 TL;DR

This CVE describes a man-in-the-middle vulnerability in Amazon WorkSpaces native clients using the PCoIP protocol. Attackers could potentially intercept and access remote desktop sessions, compromising sensitive data. All users of Amazon WorkSpaces native clients across multiple platforms are affected.

💻 Affected Systems

Products:
  • Amazon WorkSpaces native clients
Versions: All versions prior to the patched releases
Operating Systems: Windows, macOS, Linux, Android
Default Config Vulnerable: ⚠️ Yes
Notes: Only affects native clients using PCoIP protocol; web clients and other protocols are not affected.

⚠️ Manual Verification Required

This CVE does not have specific version information in our database, so automatic vulnerability detection cannot determine if your system is affected.

Why? The CVE database entry doesn't specify which versions are vulnerable (no version ranges provided by the vendor/NVD).

🔒 Custom verification scripts are available for registered users. Sign up free to download automated test scripts.

Recommended Actions:
  1. Review the CVE details at NVD
  2. Check vendor security advisories for your specific version
  3. Test if the vulnerability is exploitable in your environment
  4. Consider updating to the latest version as a precaution

⚠️ Risk & Real-World Impact

🔴

Worst Case

An attacker could fully compromise remote desktop sessions, accessing sensitive corporate data, credentials, and performing unauthorized actions as the legitimate user.

🟠

Likely Case

Session hijacking leading to data theft, credential harvesting, and lateral movement within the network.

🟢

If Mitigated

With proper network segmentation and monitoring, impact would be limited to isolated sessions with minimal data exposure.

🌐 Internet-Facing: HIGH
🏢 Internal Only: MEDIUM

🎯 Exploit Status

Public PoC: ✅ No
Weaponized: UNKNOWN
Unauthenticated Exploit: ✅ No
Complexity: MEDIUM

Requires man-in-the-middle position on the network; exploitation depends on network configuration and attacker positioning.

🛠️ Fix & Mitigation

✅ Official Fix

Patch Version: Check latest client versions in release notes

Vendor Advisory: https://aws.amazon.com/security/security-bulletins/AWS-2025-001/

Restart Required: No

Instructions:

1. Review AWS security bulletin AWS-2025-001. 2. Update all Amazon WorkSpaces native clients to latest versions. 3. Verify updates across all platforms (Windows, macOS, Linux, Android).

🔧 Temporary Workarounds

Use alternative protocols

all

Switch from PCoIP to WSP protocol where available

Network segmentation

all

Isolate WorkSpaces traffic to trusted networks only

🧯 If You Can't Patch

  • Implement strict network segmentation and monitoring for WorkSpaces traffic
  • Enforce VPN usage for all remote WorkSpaces connections

🔍 How to Verify

Check if Vulnerable:

Check client version against latest patched versions in AWS release notes

Check Version:

Check client application settings or about section for version number

Verify Fix Applied:

Confirm all clients are updated to versions mentioned in AWS security bulletin

📡 Detection & Monitoring

Log Indicators:

  • Unusual connection patterns
  • Multiple failed authentication attempts from same source
  • Session anomalies in WorkSpaces logs

Network Indicators:

  • Unexpected PCoIP traffic patterns
  • Suspicious man-in-the-middle activity on WorkSpaces network segments

SIEM Query:

source="workspaces" AND (event_type="connection_anomaly" OR protocol="PCoIP")

🔗 References

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